Welcome to the TT life.
One of the first things my husband did was sit on the sofa - which in our TT is a glorified wheel well cover - and heard a big crack. He had snapped one of the furring strip type of supports. I expected the worst after that, but it has been the only thing that disappointed us. We know it it lightweight, and treat it with much more caution than the house.
My daughter has a mobile home, and the quality across the price points is about the same as in travel trailers. There are entry level mobile homes and then the ones with drywall and really nice construction.
2016 Shasta Oasis 18BH, 2015 Ram1/2 ton Hemi